(Address地址)November30,2010(注意:地址与日期都放在最右边)DearClarence,IamsorrytoinformyouthatIcouldnotgotoHangzhouthiscomingFriday.Iknowthatwehavealreadyplannedforthistripsincelastmonthandyoumustbeverydisappointed.Mymothercalledmethismorningstatingthatmyunclewasinvolvedinanaccidentlastnight.Weareveryworriedabouthim.MymomaskedmetoaccompanyhertogotoFoshanthisafternoon.Ihopeyoumayforgivemeformysuddenleave.Ihavenochoicebuttopostponethistriptonextmonth.Pleaseacceptmyapology.Thankyou.BestRegards,Penny希望你满意.谢谢.